Grand Canyon

Compare and contrast dominating scientific theory on how the Grand Canyon was formed

Review the origin of the natural phenomenon or the process of your interest, its causes, and effects it produces
on the natural environment and the society.
Write a short essay on the topic of your interest. Focus on the following:

• the origin of the process or phenomenon
• the comparative analysis of two processes or phenomena
• causes and effects of the process or phenomenon (especially on the other geographic spheres, the environment,
and the society)
• what progress has been made lately in understanding and explaining it (or a short history of the research if  applicable).
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